Geography
United States
24 results
Europe, Eastern
17 results
China
14 results
Soviet Union
7 results
Former Soviet republics
6 results
Russia (Federation)
6 results
Communist countries
5 results
Hungary
4 results
Europe
3 results
Former communist countries
3 results
Poland
3 results
Europe, Central
2 results
Germany (East)
2 results
Afghanistan
1 results
Aghanistan
1 results
Austria
1 results
Balkan Peninsula
1 results
Beijing (China)
1 results
Bosnia and Herzegovina
1 results
Bulgaria
1 results
Cuba
1 results
Czech Republic
1 results
Czechoslovakia
1 results
Developing countries
1 results
Europe de l'Est
1 results
Europe, Western
1 results
Ex-URSS
1 results
France
1 results
Germany
1 results
Great Britain
1 results
Latvia
1 results
Lebanon
1 results
Northwest, Pacific
1 results
Países comunistas
1 results
Pennsylvania
1 results
Pittsburgh
1 results
Pittsburgh (Pa.)
1 results
Romania
1 results
Rusia
1 results
Shanghai
1 results
Siberia
1 results
Siberia (Russia)
1 results
Slovakia
1 results
South Africa
1 results
Spain
1 results
Syria
1 results
Tibet Autonomous Region (China)
1 results
Trinidad
1 results
Trinidad and Tobago
1 results
Vietnam
1 results
more…